The American Psychological Association. (2010). Publication Manual, sixth Edition (6th ed.). The American Psychological Association.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)The American Psychological Association. Publication Manual, Sixth Edition. 6th ed. Washington D.C: The American Psychological Association, 2010.
MLA -ийн эшлэл (9 дэх хэвлэлт)The American Psychological Association. Publication Manual, Sixth Edition. 6th ed. The American Psychological Association, 2010.
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